<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>登录</title>
    <style>
        * {margin: 0;padding: 0;}
        a {
            display: block;
            width: 220px;
            margin-top: 100px;
            height: 28px;
            line-height: 28px;
            margin-left: 50px;
            border: 1px solid #ea8725;
            font-size: 14px;
            text-decoration: none;
            text-align: center;
            color: #fff;
            background-image: url("img/login-btn.png");
            background-position: 0 -1px;
        }
        a:hover {
            background-position: 0 17%;
        }
    </style>
</head>
<body>
    <a href="#">登录</a>
</body>
</html>